part of the complications are due to me wanting to milk maximum speed out of it in both direction (without bringing my machine or our server or our home network to their knees), which a regular user usually doesn't care about.

but some are due to firewalling, and port throttling by ISPs, and i can see from the diagnostics azureus provides that a majority of people actually have problems with these things. i love that client. i am sitting here looking at all the peers to which it's trying to connect, watching how many fail because they're coming at me from an address in 198.162.x.x, for example. dynamic IP addresses can also be a bitch.